Effortless payroll for busy businesses.
From small teams to growing businesses, Simplex handles everything – HMRC submissions, pension contributions, payslips, and more – so you can focus on running your company. Whether you’re paying two employees or two hundred, our company payroll services are fully managed, always accurate, and tailored to your needs. Plus, with unlimited support and 48-hour response times, we’re with you every step of the way.
Stress-Free Compliance
We take care of everything – RTI submissions, statutory pay, pension auto-enrolment, and HMRC deadlines – so you stay fully compliant without lifting a finger.
Fully Managed Payroll, Your Way
Whether it’s monthly or weekly, for directors or a full team, our flexible service grows with your business. We use tools like BrightPay and Modulr to ensure fast, secure payments every time.
Unlimited, Human Support
Need help or want to make a change? Just call, text or email us – no ticketing systems, no limits, no extra charges. Real support from real people, always.
Effortless Payroll,
Done Properly
Let’s face it – payroll is a headache. It’s time-consuming, complicated, and full of risk if you get it wrong. At Simplex, we take the pressure off your shoulders by running payroll for you, accurately and on time, every month. We handle HMRC filings, auto-enrolment, sick pay, bonuses, and more. And if anything changes – a new hire, someone leaving, or a pay rise – just send us a quick message. We’ll sort it.
✅ No more last-minute calculations
✅ No software to learn
✅ Full compliance, guaranteed
Trusted by UK Businesses Nationwide
Simplex is proud to be the 2022 Xero Award Winner – Sole Practitioner of the Year, and winner of Young Entrepreneur of the Year – South East. But what we’re proudest of? Our client testimonials.
Jeanette
Isle of Wight
Lucy has been a godsend for our company. She is professional, trustworthy, competent and friendly. She has dealt with many problems s for us with a positive result. She is always available to answer any queries and deals with problems very quickly. We would highly recommend her services.
Sapna
Birmingham
Lucy and the team are amazing at just getting the job done. I know I don’t have to worry about my invoices or tax – the one thing I was worried about. All the stress is taken away and I know that Simplex Accounting are dealing with everything accurately!
Fiona
Worcester
I cannot recommend Simplex enough. Lucy has been so helpful, and got me sorted when my accounts were in such a mess! She explained everything to me, and has just made the entire process so easy. As a small business owner, having someone like Lucy helping me is exactly what you need!
Company Payroll Services Made Easy
We know payroll isn’t the most exciting part of running a business – but it’s one of the most important. Let Simplex take it off your plate, so you can get back to what you do best.
Ready to stop stressing over payroll?
Smart Tools, Simple Setup
We use trusted tools to make your accounting and payroll seamless. You’ll always use Xero for your core accounts, but for payroll, we’ll recommend the best option for your business – and provide full support and training to make it easy.
Xero
Great for straightforward payroll needs. Run payroll directly in Xero and keep everything under one roof – fully integrated with your accounts.
Brightpay
Ideal for businesses with more complex payroll requirements. BrightPay handles pensions, leave, statutory pay, and larger teams with ease.
Modulr
Perfect for businesses that want fast, flexible payments. Log in, check the payroll, and approve in seconds – with full control and security.
Getting Started is Easy!
We’ve made it simple for you to get the help you need:
Book a free consultation
Let’s talk about your business and how we can help.
Share Your Info
You can securely share your financial information with us online.
We Handle the Rest
We’ll take care of your bookkeeping and accounting, so you don’t have to worry.
Enjoy Peace
of Mind
Get regular updates and helpful advice, so you always know where your business stands.
Get started today! It will only take a minute
Switching Accountants is Easier Than You Think
Unhappy with your current accountant or just ready for a change? We make switching accountants simple and hassle-free. Our seamless process ensures your business finances stay on track without any interruptions. We’re here to support your growth and make your financial management effortless. Here’s how we handle it:
Seamless Transfer
We handle everything, ensuring your financial records are securely moved from your previous accountant.
No Disruption to Your Business
You won’t experience any downtime during the switch. We’ll work efficiently to ensure your finances are up to date without missing a beat.
A Fresh Start
Once everything is sorted, we’ll review your current financial situation and set you up with a plan that aligns with your business goals.
Ready to switch?
Get in touch today and let’s make it happen!
Accountancy Blog Posts
Your Questions, Answered
We know you might have some questions, and we’re here to make everything as clear and straightforward as possible. If you need more information, don’t hesitate to reach out—we’re always happy to help!
Payroll service costs in the UK typically range from £4 to £10 per employee per month. The total depends on how many employees you have and what level of support you need. Some accountants offer fixed monthly packages, which can be more cost-effective for small businesses. A virtual accountant can take care of everything, saving you time and ensuring compliance.
The best payroll provider depends on your business size and needs. For small UK businesses, cloud-based options like BrightPay, Xero Payroll, and FreeAgent are popular. But many business owners prefer working with an accountant who handles payroll alongside other services—keeping everything in one place and stress-free.
Yes, HMRC offers Basic PAYE Tools, which is free software for employers with fewer than 10 employees. It lets you run simple payroll, report to HMRC, and produce payslips. However, it’s quite limited—many small business owners prefer a payroll solution that integrates with bookkeeping and offers ongoing support.
Yes, you can! If you have a small team and feel confident using payroll software, it’s possible to manage it yourself. But payroll involves strict deadlines, reporting to HMRC, pensions, and payslips—so many UK business owners choose to outsource it to stay compliant and save time.
Beyond wages, employers in the UK typically pay around 13.8% in National Insurance contributions, plus pension contributions (usually at least 3%). You may also face additional costs like holiday pay and payroll software or admin fees. Getting advice from an accountant helps you budget properly and avoid surprises.
Outsourcing payroll usually costs between £20–£100 per month for small businesses, depending on the number of employees and the level of service. Many accountants include payroll as part of a fixed-fee package, giving you peace of mind that everything’s covered—from payslips to HMRC submissions.
It’s simple! Just schedule a free consultation with us, and we’ll discuss your needs and how we can help with your bookkeeping and accounting.